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<h1><a href="https://www.openscad.org/">OpenSCAD</a> version __VERSION__</h1>
<p>Copyright (C) 2009-2021 The OpenSCAD Developers.</p>

<p><a href="https://opencollective.com/openscad/donate"><img src="
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lABPVqVoVsd6gA2YoAVC+QMLSLCBWoV1pWONaxTeygm52rWqnAgCADs=" alt="Donate"></a></p>

<h2>License</h2>
<p>This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public
    License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later
    version.</p>
<p>Please visit <a href="https://www.gnu.org/licenses/gpl-2.0.html">GPL 2.0</a> for a copy of the license.</p>

<h2>Tools and Libraries used</h2>
<p>
    <a href="https://gmplib.org/">GNU GMP</a>,
    <a href="https://www.mpfr.org/">GNU MPFR</a>,
    <a href="https://www.cgal.org/">CGAL</a>,
    <a href="http://www.angusj.com/delphi/clipper.php">Clipper</a>,
    <a href="https://eigen.tuxfamily.org/">Eigen</a>,
    <a href="http://www.opencsg.org/">OpenCSG</a>,
    <a href="https://www.opengl.org/">OpenGL</a>,
    <a href="http://glew.sourceforge.net/">GLEW</a>,
    <a href="https://www.qt.io/developers/">Qt Toolkit</a>,
    <a href="https://www.riverbankcomputing.com/software/qscintilla">QScintilla</a>,
    <a href="https://www.boost.org/">Boost</a>,
    <a href="https://www.cairographics.org/">Cairo</a>,
    <a href="https://docs.gtk.org/glib/">GLib</a>,
    <a href="https://www.freedesktop.org/wiki/Software/fontconfig/">Fontconfig</a>,
    <a href="https://freetype.org/">Freetype</a>,
    <a href="https://github.com/harfbuzz/harfbuzz">Harfbuzz</a>,
    <a href="https://lodev.org/lodepng/">LodePNG</a>,
    <a href="https://github.com/memononen/libtess2">libtess2</a>,
    <a href="https://libzip.org/">libzip</a>,
    <a href="https://github.com/libusb/hidapi">HIDAPI</a>,
    <a href="https://www.gnu.org/software/bison/">Bison</a>,
    <a href="https://github.com/westes/flex/">Flex</a>,
    <a href="https://cmake.org/">CMake</a>,
    <a href="https://osdn.net/projects/mingw/">MinGW</a>,
    <a href="https://mxe.cc/">MXE</a>,
    <a href="https://www.linux.org/">Linux</a>,
    <a href="https://www.apple.com/osx/">Mac OSX</a>,
    <a href="https://www.stroustrup.com/C++.html">C++</a>,
    <a href="https://gcc.gnu.org/">GCC</a>,
    <a href="https://clang.llvm.org/">clang</a>,
    <a href="https://www.python.org/">python</a>,
    <a href="https://nsis.sourceforge.io/">Nullsoft installer</a>,
    <a href="https://github.com/google/double-conversion">double-conversion</a>,
    <a href="https://www.gnu.org/software/gettext">gettext</a>,
    <a href="https://sourceware.org/libffi">libffi</a>,
    <a href="https://www.colm.net/open-source/ragel/">Ragel</a>,
    <a href="http://xmlsoft.org/">libxml2</a>,
    <a href="http://www.ossp.org/pkg/lib/uuid">OSSP uuid</a>,
    <a href="https://github.com/3MFConsortium/lib3mf">lib3MF</a>,
    <a href="https://sparkle-project.org/">Sparkle</a>.
</p>

<h2>OpenSCAD Maintainer</h2>
<p><a href="https://github.com/kintel">Marius Kintel</a></p>

<h2>OpenSCAD GitHub Project members (public)</h2>
<p>
    <a href="https://github.com/kintel">Marius Kintel</a>,
    <a href="http://clifford.at/">Claire 'Clifford' Wolf</a>,
    <a href="https://github.com/brad">Brad Pitcher</a>,
    <a href="https://github.com/donbright">Don Bright</a>,
    <a href="https://github.com/t-paul">Torsten Paul</a>,
    <a href="https://github.com/amarjeetkapoor1">Amarjeet Singh Kapoor</a>,
    <a href="https://github.com/justbuchanan">Justin Buchanan</a>,
    <a href="https://github.com/MichaelAtOz">Michael</a>,
    <a href="https://github.com/MichaelPFrey">Michael Frey</a>,
    <a href="https://github.com/shaina7837">Shaina Sabarwal</a>,
    <a href="https://github.com/thehans">Hans Loeblich</a>,
    <a href="https://github.com/nophead">Chris</a>,
    <a href="https://github.com/Sharma-Hrishabh">Hrishabh Sharma</a>,
    <a href="https://github.com/tbharathchandra">Bharath Chandra</a>.
</p>

<h2>Package Maintainers</h2>

<h3>For <a href="https://www.debian.org/">Debian</a></h3>
<p><a href="https://christian.amsuess.com/">Christian Ams&uuml;ss (chrysn)</a>,
    <a href="https://github.com/knielsen">Kristian Nielsen</a></p>

<h3>For <a href="https://getfedora.org/">Fedora</a></h3>
<p><a href="https://hroncok.cz/">Miro Hrončok</a></p>

<h3>For <a href="https://archlinux.org/">Arch Linux</a></h3>
<p><a href="http://kmkeen.com/">Kyle Keen</a></p>

<h3>For <a href="https://www.opensuse.org/">openSUSE</a></h3>
<p><a href="https://rusnak.io/">Pavol Rusnak</a></p>

<h2>Patches (alphabetically by GitHub account)</h2>
<p>
    Jochen Kunz,
    Gert Menke,
    <a href="https://github.com/1i7">1i7</a>,
    <a href="https://github.com/5263">5263</a>,
    <a href="https://github.com/achiestdragon">david</a>,
    <a href="https://github.com/aconz2">Andrew Consroe</a>,
    <a href="https://github.com/a-e-m">a-e-m</a>,
    <a href="https://github.com/agordon">A. Gordon</a>,
    <a href="https://github.com/Alexander-Kurachenko">Alexander-Kurachenko</a>,
    <a href="https://github.com/andromodon">andromodon</a>,
    <a href="https://github.com/anna-marina">Anna Maryina</a>,
    <a href="https://github.com/Avag-Sayan">AvagSayan</a>,
    <a href="https://github.com/b4zz4">Bazza</a>,
    <a href="https://github.com/bgamari">Ben Gamari</a>,
    <a href="https://github.com/bmcage">Benny</a>,
    <a href="https://github.com/boxofrox">boxofrox</a>,
    <a href="https://github.com/brianolson">brianolson</a>,
    <a href="https://github.com/brodykenrick">Brody</a>,
    <a href="https://github.com/buganini">Buganini Chiu</a>,
    <a href="https://github.com/bwisn">bwisn</a>,
    <a href="https://github.com/chrysn">chrysn</a>,
    <a href="https://github.com/clothbot">Andrew Plumb</a>,
    <a href="https://github.com/colah">colah</a>,
    <a href="https://github.com/dmopalmer">David Palmer</a>,
    <a href="https://github.com/donc42">Don Calderwood</a>,
    <a href="https://github.com/doug-moen">Doug Moen</a>,
    <a href="https://github.com/DrCodeWizzard">Konrad Malkowski</a>,
    <a href="https://github.com/Eelis">Eelis</a>,
    <a href="https://github.com/eltonlaw">Elton Law</a>,
    <a href="https://github.com/Fat-Zer">Golubev Alexander</a>,
    <a href="https://github.com/Gazer">Ricardo Markiewicz</a>,
    <a href="https://github.com/GilesBathgate">Giles Bathgate</a>,
    <a href="https://github.com/gregjurman">gregjurman</a>,
    <a href="https://github.com/gringer">David Eccles</a>,
    <a href="https://github.com/henwist">henwist</a>,
    <a href="https://github.com/herbertp">Herbert Poetzl</a>,
    <a href="https://github.com/hoijui">hoijui</a>,
    <a href="https://github.com/hroncok">Miro Hrončok</a>,
    <a href="https://github.com/hzeller">Henner Zeller</a>,
    <a href="https://github.com/iamwilhelm">Wil Chung</a>,
    <a href="https://github.com/Ivoah">Ivoah</a>,
    <a href="https://github.com/ivoknutsel">ivoknutsel</a>,
    <a href="https://github.com/JackDesBwa">JackDesBwa</a>,
    <a href="https://github.com/jasleenkaur">Jasleen Kaur</a>,
    <a href="https://github.com/jasonblewis">Jason Lewis</a>,
    <a href="https://github.com/jbeich">Jan Beich</a>,
    <a href="https://github.com/jgelderloos">jgelderloos</a>,
    <a href="https://github.com/jlpoolen">John Poole</a>,
    <a href="https://github.com/JustinSDK">Justin Lin</a>,
    <a href="https://github.com/KeenRivals">KeenRivals</a>,
    <a href="https://github.com/kevenv">Keven</a>,
    <a href="https://github.com/knielsen">Kristian Nielsen</a>,
    <a href="https://github.com/kromanenko">Kyrylo Romanenko</a>,
    <a href="https://github.com/l29ah">Sergey Alirzaev</a>,
    <a href="https://github.com/Lenbok">Len Trigg</a>,
    <a href="https://github.com/liamim">Liam Marshall</a>,
    <a href="https://github.com/logxen">Logxen</a>,
    <a href="https://github.com/luzpaz">luzpaz</a>,
    <a href="https://github.com/maandree">Mattias Andrée</a>,
    <a href="https://github.com/mcguffin">Jörn Lund</a>,
    <a href="https://github.com/mermerico">mermerico</a>,
    <a href="https://github.com/meta23">Stefan Farthofer</a>,
    <a href="https://github.com/michthom">Michael Thomson</a>,
    <a href="https://github.com/microwave54">microwave54</a>,
    <a href="https://github.com/MrFroop">Fredrik Jambrén</a>,
    <a href="https://github.com/mrrobinson">mrrobinson</a>,
    <a href="https://github.com/NateTG">NateTG</a>,
    <a href="https://github.com/NeoTheFox">NeoTheFox</a>,
    <a href="https://github.com/nico">Nico Weber</a>,
    <a href="https://github.com/obliviand">Jason Childs</a>,
    <a href="https://github.com/OskarLinde">OskarLinde</a>,
    <a href="https://github.com/pdbogen">Patrick Bogen</a>,
    <a href="https://github.com/peteruithoven">Peter Uithoven</a>,
    <a href="https://github.com/PRouzeau">Pierre Rouzeau</a>,
    <a href="https://github.com/purcell">Steve Purcell</a>,
    <a href="https://github.com/qSLX">qSLX</a>,
    <a href="https://github.com/rcolyer">Ryan Colyer</a>,
    <a href="https://github.com/robertlugg">Robert M Lugg</a>,
    <a href="https://github.com/RomitKumar">Romit Kumar</a>,
    <a href="https://github.com/Scalpel78">Frode Lillerud</a>,
    <a href="https://github.com/seam345">Sean Borg</a>,
    <a href="https://github.com/Sharma-Hrishabh">Hrishabh Sharma</a>,
    <a href="https://github.com/sjkelly">Steve Kelly</a>,
    <a href="https://github.com/steelman">steelman</a>,
    <a href="https://github.com/TDeagan">Tim Deagan</a>,
    <a href="https://github.com/thinkyhead">Scott Lahteine</a>,
    <a href="https://github.com/tim-caper">tim-caper</a>,
    <a href="https://github.com/tjhowse">tjhowse</a>,
    <a href="https://github.com/Tomatower">Johannes Walcher</a>
    <a href="https://github.com/tonytheodore">Tony Theodore</a>,
    <a href="https://github.com/vicnet">vicnet</a>,
    <a href="https://github.com/will1471">will1471</a>,
    <a href="https://github.com/yjwork-cn">yjwork-cn</a>,
    <a href="https://github.com/zerebubuth">Matt Amos</a>,
    <a href="https://github.com/zluca">zluca</a>.
</p>

<h2>Translation</h2>
<p>Miro Hrončok, Torsten Paul, Ernesto Bazzano, Keven Villeneuve, NeoTheFox, Marek Pikuła, Alexandre Prokoudine,
    Kyrylo Romanenko, Sargis Malkonyan, Distance Learning Center at the Chinese Culture University (Open Source
    Software for School project).</p>

<h2>Mailing list, bug reports, testing, contribs, help, etc.</h2>
<p>nop head, Triffid Hunter, Len Trigg, Kliment Yanev, Christian Siefkes, Andrew Plumb, Whosawhatsis, MichaelAtOz,
    Tony Buser, mrhdias, ibyte8bits, Koen Kooi, Tomas Mudrunka, knuds, cadr, mshearn, Hans Loeblich, Brett Sutton,
    hmnapier, Eero af Heurlin, caliston, 5263, ghost, 42loop, uniqx, Michael Thomson, Michael Ivko, Pierre Doucet,
    myglc2, Alan Cox, Peter Falke, Michael Ambrus, Gordon Wrigley, Ed Nisley, Stony Smith, Pasca Andrei,
    David Goodenough, William A Adams, mrrobinson, 1i7, benhowes, Craig Trader, Miro Hrončok, Tony Theodore,
    and many others.</p>

<h2>Hosting and resources</h2>
<p>Source code repos and website hosted on <a href="https://www.github.com/">GitHub</a>.</p>
<p>Downloads hosted by <a href="http://jesusabdullah.net/">Joshua Holbrook</a>.</p>
<p>CI for Linux and macOS hosted on <a href="https://travis-ci.org/">Travis-CI</a>.</p>
<p>CI for Windows hosted on <a href="https://appveyor.com/">AppVeyor</a>.</p>
<p>Snapshot builds for Windows provided by <a href="https://circleci.com/">CircleCI</a>.</p>
<p>Snapshot builds for Linux provided by <a href="https://build.opensuse.org/">OpenSUSE Build Service</a>.</p>
<p>Static code analysis on <a href="https://scan.coverity.com/">Coverity SCAN</a> a service by Synopsys.</p>
<p>Other resources provided by <a href="http://guerby.org/">Laurent Guerby</a> and the
    <a href="https://gcc.gnu.org/wiki/CompileFarm">GCC Compile Farm,</a> with
    <a href="https://osuosl.org/">OSUOSL,</a> <a href="https://www.irill.org/">IRILL,</a>
    <a href="https://www.fsffrance.org/">FSF France,</a> <a href="https://www.amd.com/">AMD</a>,
    <a href="https://www.intel.com/">Intel</a>, <a href="https://www.ibm.com/">IBM</a>.</p>

<h2>Sound resources</h2>
<p><a href="https://freesound.org/people/GabrielAraujo/sounds/242501/">Sound for complete notification</a>.<br>
    License: CC0 1.0 Universal (CC0 1.0) Public Domain Dedication.<br>
    Author: Gabriel Araujo.</p>

<p>Donation button design is copyright of <a href="https://opencollective.com/">Open Collective, Inc.</a></p>

<p>Trademarks are property of their owners and do not imply affiliation with OpenSCAD.</p>

<p>Apologies to anyone left out. Please <a href="https://github.com/openscad/openscad/issues">file an issue</a>
    if you know of someone who belongs here.</p>
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